<template>
	<div class="container">
		<!-- 路径导航区域 -->
		<el-breadcrumb separator="/">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>FM管理</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 搜索区域 -->
		<el-row>
			<el-form :inline="true" >
				<el-form-item label="FM名称">
					<el-input v-model="queryInfo.name" clearable @clear="queryList" placeholder="请输
入FM名称"></el-input>
				</el-form-item>

				<el-form-item>
					<el-button type="primary" @click="queryList">搜索</el-button>
					<el-button type="primary" @click="toAddArticle">新增FM</el-button>
					<el-button type="danger"  ref="multipleTable" border  @click="deleteBatch" >批量删除</el-button>
				</el-form-item>
			</el-form>
		</el-row>
		<!-- 表格区域 -->
		<el-table :data="articleList" border style="width: 100%" @selection-change="handleSelectionChange">
			<el-table-column type="selection" width="55"></el-table-column>
			<el-table-column prop="id" label="ID"></el-table-column>
			<el-table-column prop="name" label="FM名称"></el-table-column>
			<el-table-column prop="music" label="FM音乐">
			</el-table-column>
			<el-table-column prop="tabularChart" label="FM图片">
				<template slot-scope='scope'> <!-- http://localhost:8888/sfzy_ssm/yuLan?filename= -->
					 <el-image
					      style="width: 100px; height: 100px"
					      :src="'http://localhost:8888/sfzy_ssm/yuLan?filename='+scope.row.picture"
					      ></el-image>
				</template>
			</el-table-column>
			<el-table-column label="操作">
				<template slot-scope='scope'>
					<el-link type="primary" @click="toEditArticle(scope.row)">编辑FM</el-link>
					<el-link type="primary" @click="toShow(scope.row)">查看FM</el-link>
					<el-link type="primary" @click="deleteArticle(scope.row.id)">删除FM</el-link>
				</template>
			</el-table-column>
		</el-table>
		<!-- 分页区域 -->
		<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
			:current-page="queryInfo.pageNum" :page-sizes="[1, 5, 10, 20]" :page-size="queryInfo.pageSize"
			layout="total, sizes, prev, pager, next, jumper" :total="total">
		</el-pagination>
		<!-- 查看对话框 -->
		<el-dialog title="查看FM" :visible.sync="dialogFormVisibleShow" @close="cancle">
			<el-form :model="article">
				<el-form-item label="FM名称" label-width="80px">
					<el-input readonly placeholder="请输入FM名称" v-model="article.name"></el-input>
				</el-form-item>
		
				<el-form-item label="FM音频" label-width="80px">
					<audio ref="audioPlayer"  controls
					:src="'http://localhost:8888/sfzy_ssm/yuLan?filename='+article.music" >  
					  您的浏览器不支持音频播放。  
					</audio>  
				</el-form-item>
		
				<el-form-item label="FM图片" label-width="80px">
					<el-image
					     style="width: 100px; height: 100px"
					     :src="'http://localhost:8888/sfzy_ssm/yuLan?filename='+article.picture"
					     ></el-image>
				</el-form-item>
		
				<!-- <el-form-item label="FM视频" label-width="80px">
					<video ref="audioPlayer" style="width: 100%;"  controls
					:src="url+'/yuLan?filename='+fm.courseVideo" >  
					  您的浏览器不支持音频播放。  
					</video>  
				</el-form-item> -->
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click="cancle">退 出</el-button>
			</div>
		</el-dialog>


		<!-- 新增和修改的对话框 -->
		<el-dialog :title="title" :visible.sync="dialogFormVisible" @close="cancle">
			<el-form :model="article">
				<el-form-item label="FM名称" label-width="80px">
					<el-input placeholder="请输入FM名称" v-model="article.name"></el-input>
				</el-form-item>

                <el-form-item label="FM音乐" label-width="80px">
					
						<el-upload action="http://localhost:8888/sfzy_ssm/upload" list-type="picture-card"
						:file-list="fileList" :on-success="hand" :limit="1" :on-preview="handlePictureCardPreview" :on-remove="handleRemove">
						<i class="el-icon-plus"></i>
					</el-upload>
				</el-form-item>
				<el-form-item label="FM图片" label-width="80px">
					<!-- <el-input placeholder="请输入文章图片" v-model="article.tabularChart"></el-input> -->
					<!-- 
				 el-upload:上传组件
					action： 上传网址
					list-type：上传组件类型
					on-preview ： 图片预览事件
					on-remove ：移除图片事件
					
				el-dialog : 预览图片组件
				 -->
					<el-upload action="http://localhost:8888/sfzy_ssm/upload" list-type="picture-card"
						:file-list="fileList" :on-success="handleSuccess" :limit="1" :on-preview="handlePictureCardPreview" :on-remove="handleRemove">
						<i class="el-icon-plus"></i>
					</el-upload>
					<el-dialog :visible.sync="dialogVisible">
						<img width="100%" :src="dialogImageUrl" alt="">
					</el-dialog>
				</el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click="cancle">取 消</el-button>
				<el-button type="primary" @click="addArticle">确 定</el-button>
			</div>
		</el-dialog>


	</div>
</template>
<script>
	export default {
		data() {
			return {
				// 查询信息对象
				queryInfo: {
					name: '',
					pageNum: 1,
					pageSize: 10
				},
				total: 183,
                ids:[],
				articleList: [],
				title: '', // 对话框标题
				dialogFormVisible: false, // 是否显示对话框
				article: { // 文章对象
					"id": '',
					"articleName": "",
					"articleIntroduce": "",
                    "music":'',
					"picture": "",
					"details": "",
					"readQuantity": 0,
					"collects": 0,
					"teacherId": 0,
					"typeId": 0,
					"createTime": ""
				},
				dialogImageUrl: '', // 预览图片路径
				dialogVisible: false, // 预览图片的对话框
				fileList:[],      // 点击修改时，图片的预览效果
				dialogFormVisibleShow:false,
				musicFileList:[]
			}
		},
		mounted() {
			this.queryList();
		},
		methods: {
			// 进入查看的预览数据页面
			toShow(row) {
				// 赋值
				this.article = row;
				// 开启对话框
				this.dialogFormVisibleShow = true;
				this.musicFileList=[{
					name:row.music,
					url:'http://localhost:8888/sfzy_ssm/yuLan?filename='+row.music
				}];
			},
			// 处理上传成功的函数
			handleSuccess(response){
				// console.log(response)
				// 把上传后的图片路径，交给文章对象的tabularChart
				this.article.picture = response.message;
			},
			hand(response){
				// console.log(response)
				// 把上传后的图片路径，交给文章对象的tabularChart
				this.article.music = response.message;
			},
			// 删除图片的事件
			handleRemove(file, fileList) {
				console.log(file, fileList);
				// 移除数据
				this.article.picture='';
			},
			// 预览图片事件
			handlePictureCardPreview(file) {
				this.dialogImageUrl = file.url;
				this.dialogVisible = true;
			},// 删除文章
 deleteArticle(id) {
   this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
     confirmButtonText: '确定',
     cancelButtonText: '取消',
     type: 'warning'
  })
  .then(() => {
      this.$http.delete('fm/remove/' + id)
          .then(resp => {
          if (resp.data.status == 200) {
             this.$message.success(resp.message);
              this.queryList()
           } else {
             this.$message.error(resp.message)
             this.queryList()
            }
           })
       })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
    handleSelectionChange(val) {
   this.ids = val.map(function (item) {
      return item.id;
    });
   console.log(this.ids);
 },
    deleteBatch() {
      if (this.ids.length == 0) {   // 没有选择文章列表
        return;
      }
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          this.$http.delete('fm/removeBatch?ids=' + this.ids)
            .then(resp => {
              if (resp.data.status == 200) {
                this.$message.success(resp.message)
                this.queryList()
              } else {
                this.$message.error(resp.message)
              }
            })
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
			// 取消对话框
			cancle() {
				this.dialogFormVisible = false;
				this.article = { // 文章对象
					"id": '',
					"name": "",
					"articleIntroduce": "",
					"picture": "",
					"details": "",
					"readQuantity": 0,
					"collects": 0,
					"teacherId": 0,
					"typeId": 0,
					"createTime": ""
				}
				this.fileList=[]
			},
			// 进入修改的预览数据页面
			toEditArticle(row) {
				//console.log(row)
				// 赋值
				this.article = row;
				// 设置标题                                           
				this.title = "修改fm";
				// 开启对话框
				this.dialogFormVisible = true;
				// 动态的获取图片的名称并绑定到fileList
				this.fileList=[{
					name:row.picture,
					url:'http://localhost:8888/sfzy_ssm/yuLan?filename='+row.picture
				}];
			},
			// 添加文章
			addArticle() {
				if (this.article.id) { // 有值为true  修改
					this.$http.put("fm/edit", this.article)
						.then(resp => {
							if (resp.data.status == 200) {
								// 消息提示
								this.$message.success('修改成功！');
								// 清空数据
								this.article = { // 文章对象
									"id": '',
									"articleName": "",
									"articleIntroduce": "",
									"picture": "",
									"details": "",
									"readQuantity": 0,
									"collects": 0,
									"teacherId": 0,
									"typeId": 0,
									"createTime": ""
								}
								// 关闭对话框
								this.dialogFormVisible = false;
								// 重新查询
								this.queryList()
								this.fileList=[]
							} else {
								this.$message.error('接口异常！')
							}
						})

				} else {
					this.$http.post("fm/add", this.article)
						.then(resp => {
							if (resp.data.status == 200) {
								// 消息提示
								this.$message.success('添加成功！');
								// 清空数据
								this.article = { // 文章对象
									"id": '',
									"articleName": "",
									"articleIntroduce": "",
									"picture": "",
									"details": "",
									"readQuantity": 0,
									"collects": 0,
									"teacherId": 0,
									"typeId": 0,
									"createTime": ""
								}
								// 关闭对话框
								this.dialogFormVisible = false;
								// 重新查询
								this.queryList()
								this.fileList=[]
							} else {
								this.$message.error('接口异常！')
							}
						})
				}
			},
			// 进入添加的对话框
			toAddArticle() {
				this.title = "新增FM";
				this.dialogFormVisible = true;
				// 把当前登录的用户的id赋值为文章的teacher_id
				this.article.teacherId = sessionStorage.getItem('userid');
			},
			// 分页查询信息的方法
			queryList() {
				// 调用后端接口来获取数据
				this.$http.get('fm/find', {
						params: this.queryInfo
					})
					.then(resp => {
						if (resp.data.status == 200) {
							console.log(resp.data)
							this.articleList = resp.data.data.list;
							this.total = resp.data.data.total;
							console.log(this.articleList)
						} else {
							this.$message.error('查询失败！')
						}
					})
			},

			handleSizeChange(size) {
				//console.log('每页显示数量发生改变');
				this.queryInfo.pageSize = size;
				this.queryInfo.pageNum = 1;
				// 重新查询
				this.queryList()
			},
			handleCurrentChange(num) {
				//console.log('页码发生改变');
				this.queryInfo.pageNum = num;
				// 重新查询
				this.queryList();
			}
		}
	}
</script>
<style>
	.el-breadcrumb {
		margin-bottom: 15px;
		padding: 0 0 15px;
		border-bottom: 1px solid #ddd;
	}

	.el-pagination {
		margin-top: 15px;
	}

	.el-link {
		padding: 0 5px;
	}

	/**设置富文本编辑器的最小高度，注意style中不能使用scoped **/
	.ql-container {
		min-height: 200px;
	}
</style>